Wrench.



J. Rm; Jn.

WRENCH.

"APPLICATION FILED JUNE 8, 190s.

TH; NnRRIs PETERS co., WASHINGTON. n. c,

v WRENGH. 1

APPLIUATION HLM) JUNE a, 190s.

Patented Sept. 29, 1908.

Aseee.

2 SHEETS-SHEET 2.

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JOSEPH REIF, JR., or HEBRoN, INDIANA.

WRENCH.

Specication of Letters Patent.

Patented Sept. 29, 1908.

Application filed. June 8, 1908. Serial No. 437,267.

To all whom t may concern:

Be it known that I, JOSEPH Rnir, Jr., a citizen of the United States,and a residentof Hebron, in the county of Porter and State of Indiana,have invented certain new and useful Improvements in Wrenches, of whichI do declare the following to be a full, clear, and exact description,reference being had to the accompanyingV drawings, forming part of thisspecification.U i i A An example of the type of wrench to which myinvention more `particularly relates, is illustrated in Letters vPatentNo. 883,237, granted to me March 3l, 1908.

e invention consists injthe'various features of' novelty hereinafterdescribed, illustrated in the accompanyingudrawing and particularlypointed out in the claims at the end of this specification. v

Figure lV is a, view partly in side elevation and partly in verticalsection Vof a wrench illustrating my invention, the "jaws being shown inopen position. Fig. 2 is a view similar to Fig. 1, but showing the jawsof the wrench in closed position. Fig. 3 is a View in rearelevatiomparts'being broken away for the purpose of better illustration.Figs. 4, 5, and 6 are views corresponding to Figs. l, 2, and 3, butshowing` a modified form of the invention. Fig. 7 is a detailperspective view`of the "latch bar ff Fig. 8 is a detail perspectiveview of the pivoted tooth of the latch bar.

A designates what vmay be termed the stationary jaw that is carried atone end of the Vhandle A, and B designates what kfor convenience may betermed Athe lmovable jaw that is carried at Ythe correspondingend of thehandle B. The stationaryV jaw V'A is preferably formed integral withitsV handle A and, similarly, the movable jawV B is preferably formedintegral with its handle B. That portionof the handle A adjacent the jawA Visformed with a chamber through which passes the handle B of the jawB and` between the walls of the chambered portion of the handle A"extends apivot pin C. Intermediate between the pivotpin Gand the rearedge of the jaw handlew B `is placed what for convenience I ldesignatea4latch bar E, the front face of" this latch bar being provided -withteeth 'e adapted to"V engage corresponding teeth b formed on the rearedge of the handlefB. The back portion of, the latch bar E is providedwith'an open,

curved seat or socket cto receive the pivot kdraw `the jaw B towards thein Fig. l of the drawing. The spring F serves to hold the teeth e of thelatch bar E in normal engagement with the teeth b of the handle bar Band also serves to force the jaws A and B normally apart, so as toreadily receive the pipe, nut or like article to which the wrench is tobe applied. When it is desired to vary the distance apart of the jaws Aand B the free or handle end of the latch bar E will be moved from theposition shown by full lines to the position shown by dotted lines inFig. 1, when the teeth e being out of engagement with the teeth b thehandle B- can be moved to any desired position.

When the wrench is to be used, its jaws A and B will be set over` thearticle to be turned, as, for example, the hexagonal nut W shown in Fig.2, and the handles will be drawn together until the jaws lirmly closeupon the nut or other article. As the jaws A and B are forced againstthe nut or like article `W there is, of course, a tendency to spread thejaws apart, and as the jaw B recedes from the jaw A it carries with itthe latch bar E. As the latch bar E is thus moved outward, the inclinedportion e2 of its seat or socket e is drawn beneath the pivot pin C andtends to more effectively handles A and B are closed.

My improved wrench is exceedingly simple in construction and the partscan be readily cast and quickly assembled by unskilled labor. When theseveral parts are to be assembled, the latch bar E will be iirst setwithin 'the chambered portion of the handle A, with Vthe seats eopposite the pivot pin C; and the handle B will then be passed throughthe chambered portion of the han-A dle A between the latch bar E and thestationary jaw A. A

Iny the preferred form of my invention, which is that illustrated inFigs. i-8 of the drawings, the stationary and movable jaws aresubstantially the same in construction as in the form of the inventionhereinbefore described. In this preferred form of my invention the latchbar E4 has a socket e4 at its upper end to receive the pivot pin C4which in this form of the invention is preferably formed integral withthe upper portion of jaw A, as the the handle A ofthe jaw A Vand thelatch bar E* is shown as provided witha movable tooth (preferablypivoted to the latch bar) and with a stationary tooth e5 formed integralwith the latch bar, both of the teeth and e being adapted to engage withthe teeth t) at the back of the handle B of the jaw B. The latch bar E4is shown as formed with a cut-away space e through which the 'free endof the tooth will extend and with a socket e7 in which the rounded upperend of the pivoted tooth E will center. As shown, the tooth .E5 isprovided with a stud or oliset cs near its lower end and with an otlfsete adjacent its upper end to limit the pivotal movement of the stud. Thepivoted tooth En is so disposed with relation to the tooth e5 that whenone of these teeth (for example, ci) is in engagement with a tooth 7) ofthe handle B, the other tooth (for eX- ample, will be about midwaybetween the interdental spaces of the teeth. rlhe advantage of thisarrangement is, that the teeth at the back of the handle B may be formedvery coarse or at a considerable distance apart, and yet permit of acomparatively close adjustment of the handle B. This is advantageous forthe reason that the teeth Z) can thus be much more conveniently castthan would be possible if the teeth were very close together. Then it isdesired. to release the teeth e5 and Ei from the teeth Z), the handle E4will be turned to the position shown by dotted lines in Fig. 4t. Thespring F, by bearing upon the back of the pivoted tooth lil", willinsure that its tooth shall engage with one of the teeth Z), even whenthe tooth e5 is midway between the teeth b. For example, if the handle Bbe drawn downward, the point of the tooth will snap into the interdentalspace immediately above it, at the time that the .tooth c5 is aboutmidway of the back of one of the teeth Y).

It is manifest that the precise details of the construction above setout may be varied without departure from the spirit of the invention,and bthat features of the invention may be employed without its adoptionas an entirety.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. A `wrench of the character described, comprising a stationary jawhaving a handle provided with a chamber adjacent said jaw,

a movable jaw provided with a handle extending through said chamber, apivot pin carried by said stationary jaw and a latch bar having an openseat or socket and interposed between said pivot pin and the handle oitsaid movable jaw, said latch bar being provided' with means toradjustably holding the handle of the movable jaw.

2. A wrench of the character described, comprising a stationary jawhaving a handle that is chambered adjacent said stationary jaw andprovided with a pivoty pin at the back et said chambered portion, amovable jaw provided with a handle extendingthrough the chamber of saidstationary jaw handle, a latch bar provided upon one side with means forengaging the movable jaw handle and provided upon its opposite side witha socket having an inclined portion to engage the pivot pin and aspring` tor normally holding said latch bar in engagement with the movable jaw handle 3. A wrench of the character described, comprising astationary jaw having a handle thatI is chambered adjacent saidstationary jaw and is provided with a pivot piu at the back of saidchambered portion, a movable jaw provided with a handle passing` throughsaid chamber of the stationary jaw handle and having teeth upon its rearedge, and a latch bar provided upon one side with teeth to engage themovable jaw handle and provided upon its opposite side with an opensocket to receive the pivot pin on the stationary jaw handle, said latchbar having a raised, inclined portion at one side of said pivot pin toengage said pin as the jaws are closed.

4:. A wrench of the chafacter described comprising two jaws pivoted and:nljustable with respect to each other, one ot said jaws having anextension or handle provided with teeth, and a latch bar provided with aplu alitfy of teeth to engage the teeth on said jaw extension, one ofthe teeth oi: the latch bar being yielding whereby the latch bar may beadjusted along said jaw extiension or handle at points less than thedistance between its teeth.

5. A wrench of the character described comprising two jaws pivoted andadjustable with respect to each other, one ot said jaws having a handleor extension provided with teeth upon its rear edge, and a latch barprovided with a plurality of teeth to engage the teeth on the rear edgeot said jaw extension, one of the teeth of said latch bar heilig pivotedwith respect to the other whereby the latch bar may be adjusted alongsaid jaw extension or handle at points less than the distance of itsteeth.

(l. A wrench ot the cha 1acter described comprising two jaws pivoted andadjustable with respect. to each other, one ot said jaws having anextension or handle, provided at its rear edge with teeth and a pivotedlatch bar provided with a plurality of teeth to engage the teeth on saidjaw extension, one

ofthe teeth of said latch bar being pivoted to said bar.

7. A wrench of the character described comprising two aws pivoted and.uljustable with respectl to each other, one of said jaws having anextension or handle provided with teeth and a latch bar provided with aseasos with an extension or handle slidable through said chambered part,said extension' or handle being provided at its rear edge With teeth,and a latch bar provided With a plu- 15 rality of teeth to engage theteeth on said jaw extension, one of the teeth of the latch bar beingyielding.

JOSEPH REIF, JR, Witnesses:

GEO. P. FISHER, J r., KATHARINE GERLACH.

